feat: add possibility of getting latest track versions from fragmenter distribution manifest

[Benjozork]

Summary of Changes

• Add possibility of getting latest track versions from fragmenter distribution manifest
• Clean up install state detection logic
• Clean up update checking logic
• Add developer setting for forcing use of local configuration

Testing Instructions

• Make sure addon installing, updating, version switching, removal, etc. works correctly
• Make sure you cannot get into a broken state by cancelling the install/update/version switch
• Make sure those operations are correctly blocked when SImBridge or the sim are running

[Saschl]

Quality Assurance Tester/Dev Team Report

Discord Username : saschl
Object of testing : 477
Date : 08/10/2024

Testing Process:

Installed A32NX, switched versions. Seems to work properly. Simbridge dependency is being installed if it's not installed yet.

Installed Simbridge, started tried uninstalling. Popup appears and after stopping installation is successful.
-> Note: Simbridge does not seem to shutdown properly when the page on the installer is open. I believe this is already an issue on master
After simbridge is stopped, uninstall works properly.

Cancelled a few installs, state seems to be consistent.
-> Empty folder for the addon is being created in the community folder but not removed again.

Testing Results:
Passed

Negatives:

• It would be good to show an error if uninstall fails due to certain issues (i.e. file locked/busy which currently happens when simbridge is stopped via the installer, but the process is still running). Right now I only see an error in the console.
  Can be a separate PR imo. Not a blocker.

• Progress for simbridge (when installed as dependency) is being shown on the aircraft page. If that's expected then pass.

• Empty folder for the addon is being created in the community folder but not removed again when an install is being cancelled.

Conclusions:

Can see the same "issues" from the negative section in the current release version. Passed then.

Media: